Self and william c



(No Model.) Y

AR. COLLINS V Loom.4 l -N0. 239,935. `Patented April 12,1881..

N.PETERS, FHOTOMTNOGRAPHER, wAsuwnfoN, D C.

RICHARD ,PATENT OFFICE.

COLLINS, F SPRINGFIELD, MASSACHUSETTS, ASSIeNoR To HIM- SELF AND WILLIAMC. MC'CLALLAN, OF SAME PLACE.

LooM.

SPECIFICATION forming part of Letters Patent No. 239,935, dated April12, 1881.

.t v Application tiled June 18, 1880. (No model.)

To all whom it may concern Be it known that I, RICHARD COLLINS, acitizen of the United States, residing at Springfield, State ofMassachusetts, have invented a new and useful Improvement in Looms, forwhich no patent has been obtained in any for! eign country with myknowledge and consent, and of which the following is a specification.

My invention relates to the construction and operation of the lathe andthe let-off motion to the yarn-roll. V

In the drawings, FigureIis a side elevation of so much of a loom as isnecessary to show the automatic let-off motion for the warp-beam,together with a stop-motion for the cloth-roll. Fig. II is a plan viewof so much of a loom as is necessary to show the construction andoperation of the lathe and Figs. III, IV, V, and VI are detail views.

In place of the usual swinging lathe, which,`

if it hits the filling before or after it passes its center, strikes itat an angle tothe surface of y the cloth, I arrange the reed-frame F atright angles, or an approximation thereto, to the frame G, of which thelathe-beamp forms part. The frame G is formed of the lathe-beam p andthe Side pieces, Q Q. These pieces Q Q are supported on the side fram esof theloom between tracks provided with V-shaped grooves and rollerssimilarly grooved, so that the Whole frame carrying the reeds can have ahorizon-l i synchronous with those of the crank-shaft all its movementsare uniform. From the position of the reed F it can be securely trussedto the frame G to be prevented from springing.

To remove thepossibility of springing in the beam p, I re-enforce it bya at piece of metal, Z, arranged as shown in Fig. IV, to, in effect,build up the beam of three Sections, in

which the center one is the metal sheet at in the plane ofthe cloth, andwith its edge in the direction from which the strain upon the beamcomes. In practice it is only necessary to let it into the beam for somedistance to sui'l ciently stiien it. When in place it is secured byscrews passing through it from the beam.

By this construction oi' beam I obviate the difficulty common to theordinary form of lathe when the filling is driven home, the spring ofwhich, by making what is known as rowing, causes the selvage yarn tobreak, and by spoiling the selvage makes cloth of an inferior quality. p

The let-ofiI motion for the yarn-roll is constructed as follows: The'concave shoe 2 upon the end of bar 3 is held by Weight 4 in constantcontact with the Warp-beam W. Its

lmovement consequent upon any diminution of the size of the yarn-rollchanges relatively1 the position of Weight 5 upon lever 6. The positionof the weight upon the lever determines the amount of friction broughtto bear upon a hub, 7, of the yarn-roll to cause it to revolve moreeasily as its circumference is reduced to maintain auniform tension uponthe warp. In detail, the rod or bar 3 is brought to the outside of theloom-frame, where it slides in bearings projecting therefrom, being keptwith its shoe in contact with the yarnroll by means of the cord e andweight 4 secured to it passing over a pulley attached to the side of theloom-frame. From the rod 3,

and secured thereto, depends the arm 8. The

lower end of arm Sis received into an offset, 9, from weight 5, so thatthe Weight can rise and fall upon the end of the arm, but be carriedhorizontally with the arm as it moves With rod 3. Passing through a slotin oifset 9 is the lever 6, and the Weight rests upon the lever, anddirectly upon-a small Wheel or frictionroll,m, in the part 9, so thatthe Weight may move" is the lever as easily as possible. The lever 6upon hinged at one end to theframe, and from a i point intermediate tosaid hinge and the Weight is secured to the lever one end of a chain orcord, X, which, after being carried as many times around the pulleys orhubs a 7 as is rc quired to produce the requisite friction, has itsother end secured to the loom-frame. `The wheel L upon one end of theyarnro1l is geared to the spur A on the side of the loom-frame. I prefera chain as a medium for conveying the friction to the hubs, as lessliable to a change of length through atmospheric or other causes. Bythis device an exceedingly sensitive automatic let-off is provided forthe yarnroll. Y

The automatic stopping of the cloth-roll is effected as follows: Hingedat r r to the frame of the loom is the rod s, which is bent at an angleon each side of its hinge, one part being carried down alongside of thelooln to e11- gage, by a hook upon its end, with the shipper S restingin the angle of a projection, s', from the lever, as shown in Fig. III,while the other part is extended to hook under the pawl T operating thecloth-roll ratchet. The movement, either automatic or manual, of theshipper S to throw the belt from the pulley to stop the `loom swings upthe end ot' rod s resting upon the lever, and thereby simultaneouslylifts, by means of the other hook upon rod s, the pawll from thecloth-roll ratchet. The advantage of thus stopping the cloth-rollwithout waiting for its stoppage in time through the stoppage of theentire loom by the shipping of the driving-belt is that a perceptibleinterval of time always elapses between the start ing of the belt by theshipper and its final transfer to the loose pulley, during whichinterval the belt, being operative, causes the shuttle to make one ormore throws, and if the loom should have been stopped by reason of thebreaking of the fillingit would be necessary to reverse the cloth-beamto draw the cloth,

which has meanwhile been traveling upon its roll, back to its properposition; but by the device shown the cloth-roll is instantly stoppedlupon any breakageof the lling.

Having described my invention, what I claim is 1. The combination, withthe side frames, J,` l

of a loom having the V-grooved track and rollers secured to their innersides, and the drivin g-shaft C, provided with cranks c c and pitmen uu', of the reed F and frameG, having the beam p, provided with there-enforcing piece of metal Z, said frame being arranged to slide uponsaid ways and be held thereto below the top of frame G with the reedvertical, and be connected at .r .fr to pit'men u u', whereby thefilling is beaten up and the frame sides Q Q and lathe-beam p are keptbelow or even with the top of the loom-frame, as set forth. l

2. The combination, with the \varpbeam W, of shoe 2, sliding rod 3, cordand weight c 4, arm 8, weight 5, provided with offset 9 adapted to beengaged by arm 8 ,of rod 3, lever 6, chain or cord X, and gears A L,having hubs a- 7, whereby the shoe, following upon a decrease in size ofthe yarn-roll, moves the weight upon the lever to reduce the friction ofthe chain upon the hubs, and so automatically lessen the tension uponthe warp-threads, substantially as shown and described.

A RICHARD COLLlNS.

Witnesses R. F. HYDE,- T. M. BROWN.

